Buffer Overflow in CuteFTP 5.0 XP via Site Manager Label

Publication date: 2026-05-25

Last updated on: 2026-05-25

Assigner: VulnCheck

Description

CuteFTP 5.0 XP contains a buffer overflow vulnerability that allows local attackers to execute arbitrary code by injecting malicious payload into the Site Manager label field. Attackers can craft a payload exceeding 520 bytes that overwrites the return address and executes shellcode when a shortcut is created and launched.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-05-25

Last Modified

2026-05-25

Generated

2026-07-06

AI Q&A

2026-05-26

EPSS Evaluated

2026-07-04

NVD

CVE-2018-25366

EUVD

EUVD-2018-21889

Affected Vendors & Products

Vendor	Product	Version / Range
globalscape	cuteftp	5.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-120	The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Attack-Flow Graph

Executive Summary

This vulnerability exists in CuteFTP 5.0 XP and is a buffer overflow issue. It allows local attackers to execute arbitrary code by injecting a malicious payload into the Site Manager label field. Specifically, if an attacker crafts a payload exceeding 520 bytes, it can overwrite the return address in memory and execute shellcode when a shortcut is created and launched.

Impact Analysis

The impact of this vulnerability is severe because it allows local attackers to execute arbitrary code on the affected system. This means an attacker could potentially gain control over the system, leading to unauthorized actions such as installing malware, stealing data, or disrupting system operations.

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